
Mt St Helena dominates this 1915 survey of the northern Napa Valley region, anchoring a landscape defined by volcanic geology and early industry. To the south, the Petrified Forest offers a prehistoric counterpoint to the active mining operations scattered across the Miyakma Mountains and Howell Mountain. This area was a critical node for quicksilver production, evidenced by the Oat Hill Mine, Coronado Mine, and Mirabel Mine. The valley floor shows the infrastructure of the burgeoning wine and resort economy, centered on Callstoga. The Southern Pacific railroad line connects the town to agricultural outposts like Larkmead, Bale, and Dunaweal. Rural life is further mapped through isolated institutions such as the Alpine School and Pine Hill School, alongside family-named holdings like Langstry Ranch and Spring Hill Farm.
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2 editions found
1902 · Napa
USGS Topo · 1:125,000
1916 · Santa Rosa
USGS Topo · 1:62,500
1920 · Healdsburg
USGS Topo · 1:62,500
1921 · Kelseyville
USGS Topo · 1:62,500
1927 · Calistoga
USGS Topo · 1:62,500
1933 · Healdsburg
USGS Topo · 1:48,000
1935 · Sebastopol
USGS Topo · 1:48,000
1940 · Healdsburg
USGS Topo · 1:62,500
1942 · Sebastopol
USGS Topo · 1:62,500
1942 · Sonoma
USGS Topo · 1:62,500